Supplemental Superior Buttress Plating for the Treatment of Posterosuperior Wall Acetabulum Fractures.

Posterosuperior wall acetabulum fractures are a unique and uncommon fracture pattern. Traditional plate fixation may not provide adequate fixation of these fracture fragments. This article presents a surgical technique and the results of a case series using a supplemental 1/3 tubular superior buttress plate to improve fracture reduction and better neutralize shear forces in the treatment of superior posterior wall fractures. Additionally, we compared failure rates of those posterior superior wall acetabular fractures treated with supplemental superior buttress plates to those treated with standard plate fixation and no supplemental superior buttress plates.